ML20086L527
| ML20086L527 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 03/18/1974 |
| From: | Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20086L524 | List: |
| References | |
| AO-74-10, NUDOCS 8402080295 | |
| Download: ML20086L527 (1) | |
Text
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lhrch 18, 3974 N
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y.r. Jaucc.P, O' 33y, Director thited Sintes Atozie. Energy Comission Nectornte of Regu3ntory Operationc 631 Park Avenue I
j Eing of Pruccias Penncyltarsia 19406 i
D.M eet:
Abnorm 1 Occurrence P'4-Hour liotification 7
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Confirc.ing Mr. F.leicchtrom's convercation with Mr. E. Erunner, 4.E.C, j
Region 1 Regalatory Operntions Office on )hrch 17s 1974.
Referencta 1.icence llun.bor DTR 44, /cenhent ) tup.ber 1, Technical Specification hble 3 2. A
!. Report lio.:
hD-277-74-10 1
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Import. Dat e:
Ihrch 18,19'?4 Occurrence Dste:
ihrch 16s 1974 hel)ity:
Pooch Botton-Atomic Power Station - Unit 2 i
R. D. 1 Deita Pennr.ylvania 17314 5
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P 3dentifiention of Occurrence Betpoint chirt a on PS 2-2-3-1340 and P5-2-2-3-134D which isolates i.
the nnin nican 31nec if preware drops btaov 850 psig when in the run rode.
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ConSitiona Prior to Occurrence:
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Plant stable at upproxinntely 3DW pover.
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Dr.ccription of Occurrence:
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Daring inctrur.ent curveiDance tentingc PS 2-2-3-1340 an$ PS-2-2-3-134D 1
trippu6 e oppro.xir.ately Sh pcic and 847 pcis rerpective)y inr, ten 6 of l
J. 650 prig en specified in the ' loch,Speen.
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Designation of Apy.orent Cause of Coeurrenco:
j Innbility of evitch to hold precice netpoints.
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halysis of Occurrences l
Setpoint chift of the nubject mediches vou'Jd not Inve defeated the
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logic to proGuce the required actionc.
'The operable witches in cach channe) vou)61mve caused trips r,t the proper seipuints.
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Seipoint chifte vere ninor enn have no safety inp'Jications.
F Corrective Actioni i
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'the onlibration was che:heS. netpoint recet and checked 5n accordu.ce
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vith the curveinance tect. The remaining cvitches in this logic were.
r checked ned found to b./ vithin the Tech Spec lititc.
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l Pnilure Datn:
Setpoint chift c hrrvo occurred on this type of cecitch in other opp'lientionc.
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b'. 7. UDrich. Daperintendent I
i Peneb Botto: Aton.ic Power Station i
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